Isocrinus nehalemensis

Isocrinus nehalemensis

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
IsocrinusPBDB
Diet
suspension feederPBDB, for Isocrinidae
Life habit
upper-level epifaunalPBDB, for Isocrinidae
Motility
stationary, attachedPBDB, for Isocrinidae
Vision
blindPBDB, for Crinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 37.71 Mya and 27.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 3 of 4 occurrencesEoceneOligocene — about 1 of 4 occurrencesOligocene38–37 Mya — about 0.2 occurrences37–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–34 Mya — about 0.3 occurrences34–34 Mya — about 0.3 occurrences34–34 Mya — about 0.1 occurrences34–33 Mya — about 0.1 occurrences33–33 Mya — about 0.1 occurrences33–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–31 Mya — about 0.1 occurrences31–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–29 Mya — about 0.1 occurrences29–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–28 Mya — about 0.1 occurrences28–28 Mya — about 0.1 occurrences28–27 Mya — about 0.0 occurrences38.2 Mya26.8 Mya

4 occurrences of Isocrinus nehalemensis on record, most of them in the Eocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

4 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

1 formation

Keasey — 46.00°N, 123.26°WKeasey — 45.72°N, 123.20°WKeasey — 44.35°N, 124.10°W

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The named rock units Isocrinus nehalemensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Isocrinus nehalemensis and its relatives

Eocene

Where Isocrinus nehalemensis and its relatives were recorded in the Eocene.

Found in the same rock

58 taxa

The Paleobiology Database records 4 sites for Isocrinus nehalemensis, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

2 references

Each of the 4 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Isocrinus nehalemensis

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Isocrinus nehalemensis was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itIsocrinus through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Moore and Vokes 1953